1968-72 A-Body Ford 9 Inch Housing/Axles with Coilover Suspension

#91604011

1968-72 A-Body Ford 9 Inch Housing/Axles with Coilover Suspension

Designed to replace the original 1968-1972 GM A-Body rearend housing
Compatible with the stock 4-link trailing arm rear suspension found in your Chevelle, Malibu, El Camino, Sprint, GTO, LeMans, Tempest, F85, Cutlass, 442, Special, Skylark and Gran Sport
Greatly increased strength (reliability)

Type:

2) Housing W/ Axles & Coilover Suspension

5) Rear Kit W/ E-Disc Brakes & Suspension 4) Rear Kit W/ Disc Brakes 3) Rear Kit W/O Brakes 4) Rear Kit W/ Drum Brakes 5) Rear Kit W/ E-Disc Brakes 1) Housing W/ Axles 2) Housing W/ Axles & Third Member 2) Housing W/ Axles, Third Member & Drum Brakes 1) Housing W/ Axles (Black)

$2,757.99

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$2,799.36

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This part is Backordered. We estimate this item will ship on or before December 1st.

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Product Summary

Upgrade Suspension Kit Type, 150 lbs. Spring Rate

Designed to replace the original 1968-1972 GM A-Body rearend housing
Compatible with the stock 4-link trailing arm rear suspension found in your Chevelle, Malibu, El Camino, Sprint, GTO, LeMans, Tempest, F85, Cutlass, 442, Special, Skylark and Gran Sport
Greatly increased strength (reliability)
The variability of the housing to accept almost any gear ratio from 2.47:1 to 6.14:1
Steel axle retainers keep the axle / wheel in place in the event of axle failure

Comes as a Kit

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Key Specs

MFG. Part #	91604011
Suspension Kit Type	Upgrade
Suspension Height Adjustment	Stock Height
Spring Rate	150 lbs.
Shocks Included	Yes

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Speedway Motors 91604011 Details

These bolt-in rear axle packages are designed to replace the original '68-'72 GM A-Body rearend housing and are compatible with the stock 4-link trailing arm rear suspension found in your Chevelle/Malibu/El Camino/Sprint/GTO/LeMans/Tempest/F85/Cutlass/442/Special/Skylark/Gran Sport. The major advantages gained by upgrading to a Ford 9" axle include:

Greatly increased strength (reliability)
The variability of the housing to accept almost any gear ratio from 2.47:1 to 6.14:1
A drop-out third member for ease of service
Steel axle retainers which keep the axle/wheel in place in the event of axle failure

If you're upgrading your rear end and axles though, why stop there? This kit also includes everything you need to convert your stock rear suspension to a coil-over suspension with a QA1 Coil-Over Conversion Kit. QA1's kit includes specifically designed mounting brackets and single adjustable aluminum shocks for the 1968-72 A-Body with all hardware included. To round it all out we have also thrown in a new sway bar, new trailing arms (with hardware), and new trailing arm mount braces. Give the rear of your car the upgrades it deserves! Just add the third member and brake kit of your choice (both sold separately) to complete your installation.

Kit includes:

990-06872 Speedway Ford 9 Inch Bolt-In Rear End Axle for 1968-72 GM A-Body
721-52340 QA1 RCK52340 Rear Coil-Over Conversion Kit, 1964-72 A-Body, 150 Pound
916-6472.1 64-72 A-Body Trailing Arm Hardware
916-6472.2 64-72 1.125 Inch Rear Swaybar
916-6472.L 64-72 A-Body Heavy Rear Lower Trailing Arm, Left Side
916-6472.R 64-72 A-Body Heavy Rear Lower Trailing Arm, Right Side
916-6872 Trailing Arm Mount Brace, 1968-72 A-Body, Pair
(2) 916-1968.1 68-72 A-Body Adjustable Upper Arm

Additional Information:

990-06872 Speedway Ford 9 Inch Bolt-In Rear End Axle for 1968-72 GM A-Body
- New stamped steel housing center piece
- New billet steel housing ends with oil seal surface ("Big New Ford" Torino-style)
- 3" O.D. DOM 3/16" wall axle tubes
- 31-spline axles w/ bearings, studs and retainers
- Axles have 2.5" of offest on each side
- 1/2"-20 wheel studs, 2" long
- 5 x 4-3/4" wheel bolt pattern
- Jig welded suspension brackets for stock style suspension
- Built to stock width
721-52340 QA1 RCK52340 Rear Coil-Over Conversion Kit, 1964-72 A-Body, 150 Pound
- Easy bolt-in installation
- No cutting or welding
- 150 pound spring rate
- Aluminum construction
- All hardware included
- Single adjustable
- Lowers vehicle
- 100% dyno tested
916-6472.1 64-72 A-Body Trailing Arm Hardware
- Includes 8 bolts, washers, and nuts
916-6472.2 64-72 1.125 Inch Rear Swaybar
- Black in color
- 1.125" Diameter
916-6472.L 64-72 A-Body Heavy Rear Lower Trailing Arm, Left Side
- Tubular
- Polyurethane bushings
916-6472.R 64-72 A-Body Heavy Rear Lower Trailing Arm, Right Side
- Tubular
- Polyurethane bushings
916-6872 Trailing Arm Mount Brace, 1968-72 A-Body, Pair
916-1968.1 68-72 A-Body Adjustable Upper Arm
- Fully Adjustable
- 1.25" O.D.

Rearend Housing 3rd Member Carrier Studs are not included but available as # 919-0915 as needed

Additional Information:

990-06872 Speedway Ford 9 Inch Bolt-In Rear End Axle for 1968-72 GM A-Body
- New stamped steel housing center piece
- New billet steel housing ends with oil seal surface ("Big New Ford" Torino-style)
- 3" O.D. DOM 3/16" wall axle tubes
- 31-spline axles w/ bearings, studs and retainers
- Axles have 2.5" of offest on each side
- 1/2"-20 wheel studs, 2" long
- 5 x 4-3/4" wheel bolt pattern
- Jig welded suspension brackets for stock style suspension
- Built to stock width
721-52340 QA1 RCK52340 Rear Coil-Over Conversion Kit, 1964-72 A-Body, 150 Pound
- Easy bolt-in installation
- No cutting or welding
- 150 pound spring rate
- Aluminum construction
- All hardware included
- Single adjustable
- Lowers vehicle
- 100% dyno tested
916-6472.1 64-72 A-Body Trailing Arm Hardware
- Includes 8 bolts, washers, and nuts
916-6472.2 64-72 1.125 Inch Rear Swaybar
- Black in color
- 1.125" Diameter
916-6472.L 64-72 A-Body Heavy Rear Lower Trailing Arm, Left Side
- Tubular
- Polyurethane bushings
916-6472.R 64-72 A-Body Heavy Rear Lower Trailing Arm, Right Side
- Tubular
- Polyurethane bushings
916-6872 Trailing Arm Mount Brace, 1968-72 A-Body, Pair
916-1968.1 68-72 A-Body Adjustable Upper Arm
- Fully Adjustable
- 1.25" O.D.

Rearend Housing 3rd Member Carrier Studs are not included but available as # 919-0915 as needed

Application

BUICK
GS 1970 - 1972
GS 350 1968 - 1969
GS 400 1968 - 1969
GS 455 1970 - 1972
Skylark 1968 - 1972
CHEVY
Chevelle 1968 - 1972
Monte Carlo 1970 - 1972
OLDSMOBILE
442 1968 - 1971
Custom Cruiser 1970 - 1972
Cutlass 1968 - 1972
Cutlass Supreme 1968 - 1972
F85 1968 - 1972
Vista Cruiser 1968 - 1972

Guides & Documents

Rear Suspension Kits Installation Instructions (91604011)

Coilovers Installation Instructions (72152340)

Speedway Motors 91604011 Specifications

KEY SPECS
MFG. Part #	91604011
Brand	Speedway Motors
Suspension Kit Type	Upgrade
Suspension Height Adjustment	Stock Height
Spring Rate	150 lbs.
Shocks Included	Yes
Shock Adjustability	Single Adjustable
Lower Shock Mount	Eyelet
Upper Shock Mount	Eyelet
Axle Housing Included	Yes

GENERAL
Sold in Quantity	Kit
Shock Body Material	Aluminum

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Fitment

1970-1972 Buick GS

1968-1969 Buick GS 350

1968-1969 Buick GS 400

1970-1972 Buick GS 455

1968-1972 Buick Skylark

1968-1972 Chevy Chevelle

1970-1972 Chevy Monte Carlo

1968-1971 Oldsmobile 442

1971-1972 Oldsmobile Custom Cruiser

1968-1972 Oldsmobile Cutlass

1968-1972 Oldsmobile Cutlass Supreme

1968-1972 Oldsmobile F85

1968-1972 Oldsmobile Vista Cruiser